Wrench



May l0 1927, 1,628,467

S. MANDL 'WRENCH Filed Deo. 22. 1924 WIW/lll.

Patented May lO, 1927.

UNITED STATES Pa'riiirr oFFicr..

SIGMUND IIANDI, OF,MILWAUKE`E,`WISCONSIN, ASSIGNOR TO HUSKY WRENCH MILWAUKEE, WISCONSIN, .A CORPORATION OF WISCONSU'.

C0., OF

WRENCH.

Application inea :December a2, 192,4. serial No. 757,312.

invention, to -manufacture'the entire bodyof the wrench, .comprising the handle and the above referred to body portion, of a simple and inexpensive drop-forging. This will permit me to machine cheaply and easily the housing for the ratchet wheel as Well as facilitate the slotting out of the recess for the pawl.

However, this construction will greatly' weaken the body portion of the wrench due to. the inherent weakness in design. In order to overcome this weakness in design and;

at the same time to provide bearings for the ratchet wheel, I employ a l'pair of side or bearing plates riveted -to the body portion of the wrench which re-enforce the body poi'- tion at its place of weakness. Incidentally, my improved wrench is much more compact as well as of much better appearance than my former type, of ratchet wrench.

Now by constructing ratchet wrenches in accordance withthe present invention, it is found in practice that the radial dimension of the bod portion and its side plates can be materia ly reduced, thereby enabling the wrench to be used in corners and other narrow or small places, particularly where the wrench has to be brought adjacent a wall or the like.

The aim or object of the present-invention is to provide an improved ratchet wrench of such a design that the above described undesirable features 'are necessarily obviated and to provide a Wrench of simple, compact and inexpensive construction embodied with the above described' desirable features.

Other objects and advantages of the invention will more fully appear from the following detailed description taken in connection With the accompanying drawings which illustrate one embodiment thereof, and in which,

' Fig. 1 is a front View of the wrench with the cover plate removed embodying the features of the invention;

Fig. 2 is a sectional view taken on the line 2-2 of Fig. l; and

Fig. 3 is a sectional view taken on the line 3 3 of Fig. 1.

Referring now to the drawings in detail, A in which like reference numerals designate similar parts throughout the several views, 10 denotes a handle which may, if desired,

be coredas shown in Figs. 1 and'2 to lessen the weight of the wrench. Formed on the end of the handle 10 is a bodyportion 11, the width of which is slightly greater than that ofthe handle 10. It should be noted, however, that the thickness ,of this body portion 11 is the saine as the thickness'of the handle 10, which necessarily facilitates its manufacture'. Centrally disposed in the body portion 11 and as near as practical to the end thereof, is a circular aperture or bore 12 which may be easily formed in dropforging dies and machined or reamed out.

Positioned in the aperture 12 is a revolvable member 13 having a set of ratchet teeth 14 formed on its peripheral portion, -thus constituting a ratchet wheel, hereinafter referred to generally by reference character 15,

Formed in the circular member 13 is a'* hexagonal aperture 16 the purpose of'which will be more fully described hereinafter.

A rectangular recess or slot 17 islocatedin the body portion 11 and is disposed adjacent to,the,bore 12 and the revolvable member l13. A rectangular pawl 18 is mounted in the recess 17 and is normally pressed outwardly by a compression' spring 19 seated in the recess 17 intermediate the inner end of the pawl 18 and the bottom of the recess 17, and between side plates 20.`

in the pawl 18 being reinforced from dele terious forces. Furthermore, it should be"- noted that the end of the pawl 18 is adapted to fit snugly in each of the teeth 14 of the ratchet wheel 15 and hence may respond rapidly andaecurately -to the movement of the ratchet wheel 15.

The body portion 11 is provided with two bearing or side plates 2 0 whiclrmay be attached thereto in any suitable manner such as by three rivets 21 (Fig. 3). The plates 20 are rovided with circular a ertures 22 which orm bearings for the hu -like portions 23 (Fig. 2 of the revolvable member 13. The parts o the wrench are preferably finished and cyanide hardened after assembly.

The ratchet wheel 1-5 of the revolvable member 13 may engage the work in any suitable or desired manner. For example, a plug 23 of a hexagonal or other polygonal cross section may be slidably fitted in the correspondingl shaped aperture 16 of the member 13. liliis plug 23 is provided With a pair of circular elements or bearings 24 mounted in recesses 25 in the side of the plug 23 and are pressed outwardly by a vpair of springs 26 also positioned in the recesses 25. c

It is, of course, apparent that the plug 23 may project from -either side of the wrench as desired. Either of the elements 24, when in the aperture 16, are adapted vto engage an annular groove 27 in the member l 13 and through the medium of the spring 26 to maintain the lug 23 in proper position. Bg exerting sight pressure on either end of t e plug 23, the spring 26 associated with the element 24 in the Groove 27 will be compressed by the said element 24 and the plug 23 may be readily removed from d the aperture 16.

The primary advantage of my invention lies in the fact that the side plates 20 when riveted in position on the body ortfion 11 greatly strengthens the wrench. t is obvious that when the ratchet wheel 15 and the pawl 18 are ina locked position, the portion of the wrench subjected to the greatest stresses and strains will be that adjacent to and surrounding the. recesses 17 in which the paw] 18 is mounted; Ordinarily, these stresses and strains mightv have been sufficient to crack thegbody portion 11. In my improved wrench above described, these plates 2() tend to hold the body portion 11 and the associated mechanism in a compact unit and to resist or counteract any of the above noted deleterious stresses, and strains thereby greatly increasing the longevity of the .It will be noted that the side plates 20 seat against shoulders 27 which not only assist in locating the` plates properly, but form re-enforcing means which operate with the rivets to rfc-enforce the weak section of the wrench. The handle 1() and the body portion 11 being of such a simple design may be made of a simple and inexpensive drop-forging and all the other parts being also of a simple character may be made by automatic machinery.

Leanne? Practically, this is of importance, inasmuch as it facilitates the manufacture of the body part havin one end circular and its other end forme( into a-handle, said circular endy having' a Yconcentric cylindrical pocket extending entirely transversely therethrough, a ratchet wheel within said pocket having an axially extending Wrench opening, saidbody between its ratchet pocket and handle having a slot extending transversely through the entire thickness of said body part and opening into said pocket, a rectangular pawl longltudinally movable in said slot but confined against transverse movement therein, a spring inpsaid slot pressing said pawl intocooperation with the teeth of said ratchet wheel, and separable side plates for said body art closmgthe sides of said awl slot and conning said ratchet wheel m said pocket, said plates being'secured to th`e body part alonvside of said slot in order to, strengthen the body part at such point.

2. In a wrench, the combination of a body portion having a handle, a ratchet having a plurality of teeth, there being a pawl slot extending entirely transversely through the body portion 'of the wrench between the ratchet and the handle, said pawl slot separating the bod portion into side portions on `opposite si es of the pawl slot, a genorally rectangular pawl mounted in said slot and engaging the ratchet, a pair of separable plates mounted upon opposite sides of the body portion over the open sides of the,

body portionl separated by the pawl slot,

and fastening devices on o posite sides of the pawl slot for securing t 1e plates to the body portion and for tying the body portion together on opposite sides of the pawl slot through said plates.

3. In a ratchet wrench, the combination of a body ortion com rising a handle having a hea at one en said head having a ratchet pocket extending entirely transversely therethrough, a ratchet mounted in said pocket, said body between its ratchet pocket and handle having a generally longitudinal angular pawl slot extending transversely through the entire thickness of the body portion and opening into the ratchet pocket, the periphery of the outer end of the ead conforming with the ratchet Vpocket and forming a thinimperforate wall servlll) mesme? tangular pawl mounted in the pawl slot and n lremovable laterally from either side of theI wrench, a spring in said slot pressingvsaid pawl into cooperation with the teeth of said 'ratchet and a pair.l l'of separable plates mounted over the lateral open side of the pawl slot, each of said plates having imperforate ring-like portions surrounding the pawl confining wal at the outer endfof the head vand retaining the pawl and ratchet against displacement, said plates brid 'ng l5 the sides or' the body portion separate by the pawl slot and fastening devices inwardly only of the foute1; `thin wall of the head and adjacentpjartsfof the plates and on. opposite sides the pawl slot for tying the body 3@ c portion on opposite sides of the together through the plates vand. ing the plates to the head.

In witness whereof, l hereunto subscribe my name this 12th de of December, 1924.

Sli' MUN@ MANDL.

mwl slot or secur- 

